[x3d-public] Avatars

[Joseph D Williams]

With discussion of avatar(s) continuing, 
I want to say that of course, any avatar 
plan must include a clear consideration 
of the idea that any proposed concept for 
International Avatar Standard could and 
maybe should be expressed as a carefully 
crafted Part or Clause or Appendix to our 
current Web3D X3D Hanim Standard.  

This means consideration of details such as: 
 scale, levels of articulation, levels of mesh detail, 
 initial pose before animation, reusable animations
 
Avatars - Three main thoughts
 1. 'Standard' skins 
     'Standard' initial pose
     'Standard' human scale
     'Standard order of points 
       as appear in user code 
        (top to bottom, grouped by appendage)
     'Standard' number of points 
       basic, intermediate, realistic
     'Standard' default texture mapping
     'Standard' feature/interaction locations
 2. 'Standard' skeletons 
     Level 0 = avatar handle only (root joint)
      Avatar always has root 
       root at hips or floor?
      (root and skin/segment geometries only)
    Various level of articulation 
     Basic names/numbers for joints, segments, features
     basic stick man j joints, s segments, f features
     hands and feet joint completeness 
     realistic medical = all joints, segments, features
 3. Compatible with web3D X3D hanim
     Why not, it is the World Standard and 
      If we need a particular skeleton, 
      then hanim can support any and all. 
     If we need a particular set of special skin(s) 
      then hanim can support them. 
     If we need various styles of animation 
      then hanim can support any and all.

Makes a teachable 'Standard' Avatar showing 
progression from most basic presentation/interaction 
features from simple hobby to full medical.  
Provides authorable, customizable, extensible 
humanoid skeleton-based character. 
Simple names/numbers for joints and segments and 
surface/internal feature points are easy to 
understand with realistic hierarchies for someone 
to start with and build on.

Thanks for fun with hanim, 
Joe
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